sales@austscientific.com.au
phone1800 021 083
Product has been added to your cart.
Multiparameter Meter U-50 Series HORIBA

Multiparameter Meter – HORIBA U-52 with 10 Metre Cable

pH, DO, Turbidity, Conductivity, Salinity, TDS, Seawater SG, ORP & Temp.
Complete kit with all sensors and backpack carry bag. (Excludes Water Depth and GPS)
 Stock Due Approx. 30/04/2025 

$6,893.00 ex GST

SKU: 383370

3 in stock

Description

Multiparameter Meter for Comprehensive Water Quality Analysis

This advanced multiparameter meter allows you to effortlessly measure and display up to 11 water quality parameters simultaneously, offering unmatched convenience and precision in one rugged field instrument. Built with an innovative control unit and smart sensor technology, it gives operators the flexibility to select which parameters are shown on the screen—ensuring a customizable, user-friendly experience every time.

Designed for efficiency in the field, this multiparameter meter is ideal for groundwater and surface water testing, combining intuitive software, robust construction, and high-performance accuracy for reliable environmental monitoring.

Key Features:

  • Clear LCD Display: Easily view selected parameters on a high-visibility screen

  • One-Hand Operation: Practical design for handheld field use

  • Smart Icons: Instantly check battery life, USB status, and probe connectivity

  • Quick-Connect Setup: Simplifies cable connection between probe and control unit

  • Shock-Resistant Cover: Built tough for outdoor and rugged environments

  • Backlit Display: Ensures readability in low-light or bright conditions

  • Low-Maintenance DO Sensor: Screw-on membrane cap minimizes upkeep

  • Chemical-Resistant Materials: Durable construction for long-term field use

  • Break-Resistant pH Electrode: Optional ToupH electrode for enhanced durability*

  • Field Replaceable Sensors: Swap sensors on-site for minimal downtime

  • Extensive Data Logging: Store up to 10,000 readings with time, date, and site name

  • USB Connectivity: Easily transfer data to a PC

  • Calibration Tracking: View recent calibration data and dates directly on the screen

Model U-52 Measures:

  • pH, pHmV, ORP, conductivity, dissolved oxygen, temperature, salinity, total dissolved solids (TDS), specific gravity of seawater, and turbidity

This multiparameter meter is the perfect solution for professionals conducting water quality assessments across diverse field conditions.

Complete Kit Includes:

  • Control unit and fully loaded probe assembly

  • Backpack-style carrying case

  • Spare D.O. membrane, filling solution, and spanner

  • pH reference solution, silicone grease

  • Calibration beaker set, 500 mL Auto-Cal solution

  • Sponge brush, batteries, and instruction manual

Accessories Available:

  • Optional heavy-duty carry case

  • USB cable and software for PC data download

  • View whole range of accessories HERE

For more technical details and to compare models, visit the ‘Specifications’ tab above.

U-51 U-52 U-52G U-53 U-53G
pH    ✓    ✓     ✓    ✓     ✓
Dissolved Oxygen    ✓    ✓     ✓    ✓     ✓
Conductivity    ✓    ✓     ✓    ✓     ✓
Salinity    ✓    ✓     ✓    ✓     ✓
TDS(Total Dissolved Solid)    ✓    ✓     ✓    ✓    ✓
Seawater specific gravity    ✓    ✓     ✓    ✓     ✓
Temperature    ✓    ✓     ✓    ✓     ✓
Turbidity (LED)    —    ✓     ✓    —     —
Turbidity (Tungsten lamp)    —    —     —    ✓     ✓
Water depth    —    —     ✓    ✓     ✓
ORP (Oxidation Reduction Potential)    ✓    ✓     ✓    ✓     ✓
GPS    —    —     ✓    —     ✓

Sensor Probe

U-
51		 U-
52		 U-
52G		 U-
53		 U-
53G
Max.items displaying simultaneously  10  11  11  11  11
Measurement temperature -10 to 55°C
Max. sensor diameter Approx. 96mm
Probe length Approx. 340mm
Cable length Standard: 2m, Option: 10m,30 m
Mass Approx. 1800g
(Approx. 3.97 Ibs)
Automatic calibration
(use pH4)		 Applying to all models
Turbidity wiper  –  –  –  ✓  ✓
Measurement depth Max. 30 m
Material contact with liquid PPS, glass, SUS316L, SUS304, FKM, PEEK, Q,Titaniumu,
FEP membrane, POM
Water resistance JIS protection livel 8

 Monitor

U-51 U-52 U-52G U-53 U-53G
Outer dimensions 115(W) X 66(D) X 283(H) mm
Mass Approx. 800 g
(Approx. 1.76 Ibs)
LCD 320 X 240 liquid crystal display with backlight (black and white)
Data memory 10,000
Communication USB
Battery C batteries X 4
Water resistance JIS protection level 7 (when sensor cable is fitted)
Battery life U-51, U-52, U-52G:
Approx. 70 hours
(without backlight)U-53, U-53G:
Approx.500 measurements
Storage temperature -10 to 60°C
Ambient temperature -5 to 45°C

pH(All models in common)

  • Two-point calibration
  • Automatic temperature
Specification attribute Specification value
Measurement principle Glass electrode method
Range pH 0 to 14
Resolution 0.01pH
Repeatability ±0.05pH
Accuracy ±0.1pH

Oxidation Reduction Potential (ORP)

Specification attribute Specification value
Measurement principle Platinum electrode method
Range -2000 mV to +2000 mV
Resolution 1 mV
Repeatability ±5 mV
Accuracy ±15 mV

Dissolved Oxygen (DO, All models in common)

  • Salinity conversion (0 to 70 PPT / automatic)
  • Automatic temperature compensation
Specification attribute Specification value
Measurement principle Polarographic method
Range 0 to 50.0 mg/L
Resolution 0.01 mg/L
Repeatability ±0.1 mg/L
Accuracy 0 to 20 mg/L: ±0.2 mg/L
20 to 50 mg/L:±0.5 mg/L

Conductivity (COND, All models in common)

  • Auto range
  • Automatic temperature conversion (25°C)
Specification attribute Specification value
Measurement principle 4 AC electrode method
Range 0 to 10 S/m (0 to 100 mS/cm)
Resolution 0.000 to 0.999 mS/cm:0.001
1.00 to 9.99 mS/cm: 0.01
10.0 to 99.9 mS/cm: 0.1
0.0 to 99.9 mS/m: 0.1
0.100 to 0.999 S/m: 0.001
1.00 to 9.99 S/m: 0.01
Repeatability ±0.05% F.S.
Accuracy *±1% F.S.
(Median of two-point calibration)

Salinity

Specification attribute Specification value
Measurement principle Conductivity conversion
Range 0 to 70 PPT (permillage)
Resolution 0.1 PPt
Repeatability ±1 PPT
Accuracy ±3 PPT

Total Dissolved Solid (TDS)

  • Conversion factor setting
Specification attribute Specification value
Measurement principle Conductivity conversion
Range 0 to 100 g/L
Resolution 0.1% F.S.
Repeatability ±2 g/L
Accuracy ±5 g/L

Seawater specific gravity

  • Display δ1, δ0, δ15
Specification attribute Specification value
Measurement principle Conductivity conversion
Range 0 to 50 δt
Resolution 0.1 δt
Repeatability ±2 δt
Accuracy ±5 δt

Temperature

Specification attribute Specification value
Measurement principle Thermistor method
Range -10 to 55°C
Resolution 0.01°C
Repeatability *±0.10°C (at calibration point)
Accuracy JIS class B platinum thermometer sensor (±0.3+0.005 |t|)

Turbidity (TURB)

U-51 U-52 U-52G U-53 U-53G
Measurement principle – LED
light
source
and
30°scattering
method		 Tungsten lamp
source
and
90°scattering
method
Range – 0 to 800 NTU 0 to 1000 NTU
Resolution – 0 to 99.9 NTU: 0.1,
100 to 800 NTU: 1		 0 to 9.99 NTU: 0.01,
10 to 99.9 NTU: 0.1,
100 to     1000 NTU: 1,
Repeatability – *±5% (reading) or ±0.5 NTU whichever is greater ±3% (reading) or ±0.1 NTU whichever is greater
Accuracy – ±5% (reading) or ±1 NTU whichever is greater 0 to 10 NTU: ±0.5
10 to 1000 NTU: 3% (reading) or ±1 NTU whichever is greater

Water depth

U-  51 U-52 U-52G U-53 U-53G
Measurement principle    –    – Pressure method
Range    –    – 0 to 30 m
Resolution    –    – 0.05 m
Repeatability    –    – ±1% F.S.
Accuracy    –    – ±0.3 m

GPS

12 channel parallel (This is availalble for U-52G, U-53G.)

Note:
*Battery life based on continuous operation using alkaline C dry batteries when the monitor temperature is over 20℃ and the backlight OFF.
*Accuracy is measured by calibrating 4 points for turbidity and electrical conductivity and 2 points for all other measurements against standard solution.
*Repeatability is measured by the ability to reproduce the results against the standard solution (at 25℃ normal pressure condition).

CLICK HERE: HOW TO DO AUTO CALIBRATION

keyboard_arrow_up